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4ghz troubleshooting guide – Spektrum SPMAR6400NBL User Manual

Page 9

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EN

9

2.4GHz Troubleshooting Guide

Problem

Possible Cause

Solution

Aircraft will not

“throttle up”but

all other controls

seem to function

User did not lower

throttle trim and throttle

stick prior to initializing

the aircraft

Lower throttle stick and

throttle trim to their lowest

settings

Throttle channel is

reversed.

Futaba transmitters

(equipped with Spe-

ktrum modules) may

require you to reverse

the throttle channel

Reverse throttle channel on

specific transmitter if

applicable

LED on aircraft

remains flashing

and cannot be

controlled by

transmitter

User did not wait at

least 5 seconds after

powering the transmit-

ter prior to

connecting the flight

battery to the aircraft

Unplug, then reconnect

flight battery

User bound the aircraft

to a different trans-

mitter

Rebind aircraft to your

desired compatible

transmitter

Transmitter was too

close to aircraft during

the initialization process

Move transmitter (powered

on) a few feet from the

aircraft prior to reconnect-

ing the flight battery

Controls appear

to be reversed

after binding

to a different

transmitter

User did not initially set

up transmitter prior to

binding to the aircraft

See the “Advanced

Programming” section of

this manual

Aircraft does not

function after

connecting flight

battery and

aircraft smells

burnt

User may have ac-

cidentally plugged the

flight battery in with the

wrong polarity

Replace AR6400NBL board

and ensure the RED polar-

ity marks are facing the

same direction when

connecting the flight bat-

tery to the AR6400NBL

board